KR101035893B1 - 컨텐트 보호를 위한 조건적 접속 방법 및 시스템 - Google Patents

컨텐트 보호를 위한 조건적 접속 방법 및 시스템 Download PDF

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Publication number
KR101035893B1
KR101035893B1 KR1020067014846A KR20067014846A KR101035893B1 KR 101035893 B1 KR101035893 B1 KR 101035893B1 KR 1020067014846 A KR1020067014846 A KR 1020067014846A KR 20067014846 A KR20067014846 A KR 20067014846A KR 101035893 B1 KR101035893 B1 KR 101035893B1
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KR
South Korea
Prior art keywords
key
ecmc
message
content
ecmi
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KR1020067014846A
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English (en)
Korean (ko)
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KR20060101788A (ko
Inventor
지이 뒤브로익
장-피에르 비가리
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비악세스
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Publication of KR20060101788A publication Critical patent/KR20060101788A/ko
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Publication of KR101035893B1 publication Critical patent/KR101035893B1/ko

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
KR1020067014846A 2003-12-23 2003-12-23 컨텐트 보호를 위한 조건적 접속 방법 및 시스템 KR101035893B1 (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2003/050207 WO2005071963A1 (fr) 2003-12-23 2003-12-23 Procede et systeme d'acces conditionnel applique a la protection de contenu

Publications (2)

Publication Number Publication Date
KR20060101788A KR20060101788A (ko) 2006-09-26
KR101035893B1 true KR101035893B1 (ko) 2011-05-23

Family

ID=34803301

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020067014846A KR101035893B1 (ko) 2003-12-23 2003-12-23 컨텐트 보호를 위한 조건적 접속 방법 및 시스템

Country Status (6)

Country Link
US (1) US7647641B2 (zh)
EP (1) EP1698176A1 (zh)
KR (1) KR101035893B1 (zh)
CN (1) CN100592787C (zh)
AU (1) AU2003302200A1 (zh)
WO (1) WO2005071963A1 (zh)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
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FR2871017B1 (fr) * 2004-05-28 2008-02-29 Viaccess Sa Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible
EP1742475A1 (fr) * 2005-07-07 2007-01-10 Nagravision S.A. Méthode de contrôle d'accès à des données chiffrées
FR2894757B1 (fr) * 2005-12-13 2008-05-09 Viaccess Sa Procede de controle d'acces a un contenu embrouille
EP2014093B1 (en) * 2006-05-04 2013-03-27 NDS Limited Scrambled digital data item
US9277295B2 (en) 2006-06-16 2016-03-01 Cisco Technology, Inc. Securing media content using interchangeable encryption key
US9137480B2 (en) 2006-06-30 2015-09-15 Cisco Technology, Inc. Secure escrow and recovery of media device content keys
US8509435B2 (en) * 2006-12-07 2013-08-13 Broadcom Corporation Method and system for a transport single key change point for all package identifier channels
US20080137850A1 (en) * 2006-12-07 2008-06-12 Rajesh Mamidwar Method and system for a generic key packet for mpeg-2 transport scrambling
US8108680B2 (en) * 2007-07-23 2012-01-31 Murray Mark R Preventing unauthorized poaching of set top box assets
US8385545B2 (en) * 2007-07-27 2013-02-26 Howard G. Pinder Secure content key distribution using multiple distinct methods
US20090067625A1 (en) * 2007-09-07 2009-03-12 Aceurity, Inc. Method for protection of digital rights at points of vulnerability in real time
US20090080665A1 (en) * 2007-09-25 2009-03-26 Aceurity, Inc. Method of Generating Secure Codes for a Randomized Scrambling Scheme for the Protection of Unprotected Transient Information
US7949133B2 (en) * 2007-09-26 2011-05-24 Pinder Howard G Controlled cryptoperiod timing to reduce decoder processing load
US8726352B2 (en) * 2007-11-06 2014-05-13 International Business Machines Corporation Administration of access control keys in a virtual world
FR2931972A1 (fr) * 2008-05-27 2009-12-04 France Telecom Controle d'acces a un contenu audiovisuel.
EP2334069A1 (en) * 2009-12-11 2011-06-15 Irdeto Access B.V. Providing control words to a receiver
IL213611A0 (en) 2011-06-16 2011-07-31 Erez Waisbard Secure fast channel changing
US8819407B2 (en) * 2011-09-26 2014-08-26 Verizon New Jersey Inc. Personal messaging security
US9888283B2 (en) 2013-03-13 2018-02-06 Nagrastar Llc Systems and methods for performing transport I/O
USD729808S1 (en) 2013-03-13 2015-05-19 Nagrastar Llc Smart card interface
US9485533B2 (en) 2013-03-13 2016-11-01 Nagrastar Llc Systems and methods for assembling and extracting command and control data
USD759022S1 (en) 2013-03-13 2016-06-14 Nagrastar Llc Smart card interface
US9647997B2 (en) 2013-03-13 2017-05-09 Nagrastar, Llc USB interface for performing transport I/O
USD758372S1 (en) 2013-03-13 2016-06-07 Nagrastar Llc Smart card interface
USD780763S1 (en) 2015-03-20 2017-03-07 Nagrastar Llc Smart card interface
USD864968S1 (en) 2015-04-30 2019-10-29 Echostar Technologies L.L.C. Smart card interface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691787A1 (en) * 1994-07-08 1996-01-10 Sony Corporation Receiving controlled-access broadcast signals
EP0858184A2 (en) * 1997-02-07 1998-08-12 Nds Limited Digital recording protection system
EP0936774A1 (en) * 1998-02-13 1999-08-18 CANAL+ Société Anonyme Recording of scrambled digital data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0800745B1 (en) * 1995-10-31 2003-09-17 Koninklijke Philips Electronics N.V. Time-shifted conditional access
JP4517436B2 (ja) 2000-02-09 2010-08-04 ソニー株式会社 受信システム、受信装置、及び受信システムの制御方法
DE60040724D1 (de) * 2000-04-07 2008-12-18 Irdeto Access Bv Datenverschlüsselungs und -entschlüsselungssystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691787A1 (en) * 1994-07-08 1996-01-10 Sony Corporation Receiving controlled-access broadcast signals
EP0858184A2 (en) * 1997-02-07 1998-08-12 Nds Limited Digital recording protection system
EP0936774A1 (en) * 1998-02-13 1999-08-18 CANAL+ Société Anonyme Recording of scrambled digital data

Also Published As

Publication number Publication date
AU2003302200A1 (en) 2005-08-11
CN1910923A (zh) 2007-02-07
US7647641B2 (en) 2010-01-12
WO2005071963A1 (fr) 2005-08-04
EP1698176A1 (fr) 2006-09-06
US20070150960A1 (en) 2007-06-28
KR20060101788A (ko) 2006-09-26
CN100592787C (zh) 2010-02-24

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